Curved Waterjet-Guided Laser Micro-Manufacturing

弯曲水射流引导激光微制造

• 批准号: 1234491
• 负责人: Kornel Ehmann
• 金额: $ 44.2万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-09-01 至 2017-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1234491&HistoricalAwards=false
• 关键词: Curved; Waterjet; Guided; Laser; Micro

The research objective of this award is to formulate a methodology and system for the micro-manipulation of a waterjet serving as a laser beam waveguide leading to the development of a new multi-functional hybrid waterjet-guided laser micro-manufacturing process and machine capable of laser ablation, micro-cutting, surface micro-texturing and modification and micro-incremental forming. The salient characteristic of the envisioned process rests in the possibility of simultaneously using thermal and mechanical actions with different attributes in controlled proportions. The approach will be the use of a controlled electrostatic field generated by a multi-pole actuator to bend the waterjet waveguide and, thereby, control the spatial orientation, the position of impingement, direction of lasing action and the force the waterjet exerts on the workpiece. The principal tasks will be: (1) waterjet waveguide characterization; (2) waterjet bending and control through an electrostatic actuator; (3) waterjet-guided micro-incremental forming process development; and (4) construction of an experimental prototype machine to serve as a vehicle for process model and technology verification.If successful, this research will lead to a new ability to manufacture three-dimensional micro-features on metallic and non-metallic parts without relocating the part, which will lead to enhanced precision. The physical interaction of the waterjet and laser beam will open process windows for achieving deformation, cutting, and surface treatment of the workpiece material in a single hybrid integrated manufacturing machine. Process productivity will be considerably enhanced because of the anticipated high process bandwidth. The project will provide training to a diverse group of graduate and undergraduate students and practitioners through research opportunities, course projects and short courses.

该奖项的研究目标是制定一种作为激光波导型水射流微操作的方法和系统，从而开发一种新型多功能混合水射流制导激光微制造工艺和机器，能够进行激光烧蚀、微切割、表面微纹理和修改以及微增量成形。所设想的过程的显著特征在于可以同时使用具有不同属性的受控比例的热和机械作用。该方法将使用由多极致动器产生的受控静电场来弯曲水射流波导管，从而控制空间取向、撞击位置、激光作用的方向以及水射流加在工件上的力。主要任务是：(1)水射流波导特性；(2)通过静电致动器进行水射流弯曲和控制；(3)水射流引导的微增量成形工艺开发；(4)建造实验样机作为工艺模型和技术验证的载体。如果这项研究成功，这项研究将带来一种新的能力，在金属和非金属零件上制造三维微特征而不需要重新定位零件，从而提高精度。水射流和激光的物理相互作用将为在单一混合集成制造机器中实现工件材料的变形、切割和表面处理打开工艺窗口。由于预期的高工艺带宽，工艺生产率将大大提高。该项目将通过研究机会、课程项目和短期课程为不同的研究生和本科生和实践者群体提供培训。